The BMW B57 Diesel Cylinder Head Rocker Cover – OEM 11128575408 is a direct-fit valve cover engineered for a range of modern BMW 3.0 L B57 diesel engines. This critical engine component sits atop the cylinder head and seals the valve train, protecting internal camshafts and rocker arms while preventing oil leaks and maintaining proper crankcase ventilation. When the original cover becomes cracked, warped or starts leaking oil, replacing it restores effective sealing, improves engine reliability and prevents contamination of critical valvetrain components. This part is specifically designed to match original BMW specifications and fits many BMW models fitted with the B57/B57S diesel engine.

OEM Number: 11128575408, 8575408
 
CYLINDER HEAD ENGINE VALVE COVER FOR G30 G31 G11 G12 G05 G06 G07 8575408

Quantity : 1

Our SKU: TB11128575408_94 

For the Following Cars :

BMW 5 SERIES G30 M550dX (10/2016 - 12/2019)
BMW 5 SERIES G31 M550dX (11/2016 - 12/2019)
BMW 7 SERIES G11 LCI 750dX (02/2018 - 12/2019)
BMW 7 SERIES G11 750dX (09/2015 - 02/2019)
BMW 7 SERIES G12 LCI 750LdX (01/2018 - 12/2019)
BMW 7 SERIES G12 750LdX (10/2015 - 02/2019)
BMW X5 G05 M50dX (09/2017 - 12/2019)
BMW X6 G06 M50dX (06/2018 - 12/2019)
BMW X7 G07 M50dX (11/2017 - 12/2019) 

All our Cylinder Head Cover Rocker Cover For BMW 5 7 Series X5 X6 X7 11128575408 are OEM quality and reliable after market car parts. This Cylinder Head Cover Rocker Cover For BMW 5 7 Series X5 X6 X7 11128575408 is specifically compatible with .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

• OEM-Referenced Fitment: Designed to replace the original BMW part 11128575408, ensuring correct alignment and compatibility with B57 diesel engines without modification or rework.

• Seals the Cylinder Head: Helps maintain proper oil containment and crankcase pressure, preventing oil leaks and protecting internal valve train components from dust and debris.

• Improves Engine Reliability: A high-quality rocker cover helps maintain engine health, avoiding oil loss or contamination that can lead to performance issues and expensive repairs.

• Durable Construction: Made from robust, heat-resistant materials to withstand the thermal and vibrational stresses seen in frequently used BMW diesel engines.

• Wide Vehicle Compatibility: Fits numerous BMW models across 5 Series, 7 Series, X-Series and other diesel applications equipped with the B57/B57S 3.0 L engine — ideal for cars like the 530d, 730d and diesel X5/X6.

Frequently Asked Questions (FAQs)

Q1: What is a rocker (valve) cover?
A: A rocker cover — also called a valve cover — sits on top of the cylinder head to seal in engine oil and protect camshafts, lifters and other valvetrain components from contaminants.

Q2: What engine does this rocker cover fit?
A: This cover is designed for BMW 3.0 L B57 / B57S diesel engines, commonly found in 5 Series, 7 Series, X-Series and other BMW models where OEM part 11128575408 is specified.

Q3: How do I know if my rocker cover needs replacing?
A: Common symptoms include engine oil leaks around the top of the engine, burning oil smells, smoke from the engine bay, or oil on ignition coil boots — all of which can indicate a warped or cracked cover.

Q4: Does this come with a gasket?
A: Many aftermarket rocker covers are supplied with gaskets and bolts — but you should check the product description to confirm what’s included. For best results, always use a new gasket when fitting.

Q5: Is installation difficult?
A: Replacing a rocker cover is moderate difficulty and typically involves removing components like ignition coils and air intakes. Professional installation is recommended to ensure correct torque and sealing.